一个匹配的设计和参数识别方法混合动力电推进系统的混合动力电推进系统
Bingjie Zhu1, Yingtao Zhu1, Qingyang Chen2
1College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, Hunan, China.
Scientific reports
|February 27, 2025
概括
本研究介绍了固定翼VTOL飞机中连续混合动力电推进系统 (S-HEP) 的综合分析方法. 优化的S-HEP系统提高了能源效率,并减少了超过11.7%的燃料消耗.
科学领域:
- 航空航天工程 航空航天工程
- 可持续航空技术 可持续航空技术
- 电动推进系统 电动推进系统
背景情况:
- 混合电动推进系统为一般电动航空提供了显著的优势.
- 优化串行混合动力电推进 (S-HEP) 系统参数对于提高能源利用效率至关重要.
- 匹配设计是固定翼垂直起降 (VTOL) 飞机中S-HEP系统的一个关键挑战.
研究的目的:
- 为定翼VTOL飞机量身定制的S-HEP系统的匹配设计提出一个综合分析方法.
- 为了优化设计,将飞行形状性能要求与S-HEP系统约束相结合.
- 通过案例研究和模拟来验证拟议的方法.
主要方法:
- 模拟推力和功率需求作为截面函数曲线以加快计算.
- 将组件设计和参数识别 (推进,发电机,电池) 与功能曲线对齐.
- 从测试数据中推导出经验方程,以确定其与现实世界的相关性.
主要成果:
- 一个100公斤固定翼VTOL飞机的案例研究验证了拟议的方法.
- 模拟证实S-HEP系统满足所有推力和功率要求.
- 该系统展示了高效和节能运行性能.
结论:
- 综合分析方法为固定翼VTOL飞机的S-HEP系统设计提供了规范性方法.
- 优化的S-HEP系统显著提高了能源效率,降低了燃料消耗.
- 一架100公斤的VTOL飞机用3.4公斤的燃料在1小时的飞行时间内实现了11.7%的燃油节省,与纯内燃机相比.
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